970234721 has 2 divisors, whose sum is σ = 970234722. Its totient is φ = 970234720.

The previous prime is 970234711. The next prime is 970234729. The reversal of 970234721 is 127432079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 716151121 + 254083600 = 26761^2 + 15940^2 .

It is an emirp because it is prime and its reverse (127432079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 970234721 - 2¹⁰ = 970233697 is a prime.

It is equal to p_49410179 and since 970234721 and 49410179 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (970234729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485117360 + 485117361.

It is an arithmetic number, because the mean of its divisors is an integer number (485117361).

Almost surely, 2^970234721 is an apocalyptic number.

It is an amenable number.

970234721 is a deficient number, since it is larger than the sum of its proper divisors (1).

970234721 is an equidigital number, since it uses as much as digits as its factorization.

970234721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 970234721 is about 31148.5909954206. The cubic root of 970234721 is about 989.9781381425.

The spelling of 970234721 in words is "nine hundred seventy million, two hundred thirty-four thousand, seven hundred twenty-one".